dict_ticket={'G1569':['北京南-天津南','18:05','18:39','00:34'],
             'G1567':['北京南-天津南','18:15','18:49','00:34'],
             'G8917':['北京南-天津西','18:20','19:19','00:59'],
             'G203':['北京南-天津南','18:15','18:49','00:34'],
            }
print('车次\t\t出发站-到达站\t\t出发时间\t\t\t到达时间\t\t\t历时时长')
for item in dict_ticket:
    print(item,end='  ')
    for i in dict_ticket.get(item):
        print(i,end='\t\t\t')
    print()#默认换行
a=input('请输入要购买的车次')
flag=False
for item in dict_ticket:
    if item==a:
        flag=True
        break
if flag==False:
    print('车次不存在')
else:
    b=input('请输入乘车人')
    print(f'{(dict_ticket[a])[0]}{a}车次已经购买')
    print(f'发车时间为{(dict_ticket[a])[1]}')
    print(f'请{b}做好乘车准备')


